Previous: signature-lifetime, Up: zones Statement Definition and Grammar [Contents][Index]
Specifies how the zone serial is updated after DDNS (dynamic update) and automatic DNSSEC signing. If the serial is changed by the dynamic update, no change is made.
increment - After update or signing, the serial is automatically incremented (according to serial number arithmetic).
unixtime - After update or signing, serial is set to the current unix time.
Warning: If your serial was in other than unix time format, be careful with transition to unix time. It may happen that the new serial will be ’lower’ than the old one. If this is the case, the transition should be done by hand (consult: http://www.zytrax.com/books/dns/ch9/serial.html).
Default value: increment